High-performance phosphite antioxidant offering exceptional melt stability for polyolefins during high-temperature processing.
Excellent hydrolytic stability compared to conventional aryl phosphites, ensuring consistent performance in humid or moisture-prone environments.
Synergistic with hindered phenolic antioxidants (e.g., ADK STAB AO-50, AO-60), enhancing overall oxidative resistance in multi-stabilizer systems.
Low volatility and minimal odor, supporting cleaner production and improved worker safety in extrusion and injection molding operations.
Non-staining and compatible with pigments, fillers, and other additives commonly used in color-concentrate and masterbatch formulations.
Polypropylene (PP) homopolymers and copolymers for automotive interior parts and under-hood components.
Polyethylene (PE) films, including heavy-duty shipping sacks and agricultural mulch films requiring long-term thermal stability.
PP and PE fibers and nonwovens used in geotextiles and hygiene products exposed to extended heat history.
Recycled polyolefin compounds where enhanced stabilization is critical to counteract accumulated degradation.
Masterbatches for food-contact and medical-grade plastic applications complying with FDA and EU regulatory frameworks.
| Chemical Type | Tris(2,4-di-tert-butylphenyl) phosphite |
| Product Form | Pellets |
| Appearance | White to off-white free-flowing pellets |
| Melting Point | 195–205 °C (by DSC) |
| Assay (Purity) | ≥ 99.0% (by GC) |
| Volatile Matter | ≤ 0.2% (at 120 °C, 2 h) |
| Heavy Metals (as Pb) | ≤ 5 ppm |
| Primary Applications | Polyolefins (PP, HDPE, LDPE), masterbatches, recycled resins |
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E-mail: wangxingqiang@ericwchem.com
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